Ironing needle heating mechanism and battery cell hole ironing equipment
The heating mechanism with inductive heating and heat insulation design solves the problems of slow heating speed and unstable temperature control in the battery cell winding process, achieving efficient and safe battery cell processing.
Patent Information
- Application Number
- CN202520134539.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-01-20
AI Technical Summary
In the current battery cell winding process, the heating needles are slow and the temperature control is unstable, resulting in low production efficiency and easy burns to surrounding parts, making operation unsafe.
The heating mechanism employs a hot-pin heating element, which includes a frame, a drive unit, a hot-pin, and a heating device. It utilizes an inductive device to heat the hot-pin through an inductive channel, and a heat insulation body is installed on the outside of the heating device to block heat radiation. Temperature control is achieved in conjunction with a thermocouple.
It improves heating speed and temperature control accuracy, reduces the impact of heat radiation on surrounding components, enhances production efficiency, and ensures operational safety.
Smart Images
Figure CN223898315U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery cell processing technology, and in particular to a heating mechanism for hot-pressing needles and a device for hot-pressing holes in battery cells. Background Technology
[0002] In the current battery cell winding process, the heating needles are thin and long, the heating speed is slow, and the temperature control is unstable, resulting in low production efficiency, inadequate heat insulation, and overheating of surrounding parts, making operation and debugging unsafe. Utility Model Content
[0003] To address the problem that heating devices in existing technologies cause surrounding parts to overheat, this utility model provides a heating needle mechanism and a battery core heating device.
[0004] This application provides a heating mechanism for a hot-stamping needle, comprising a frame, a driving device, a hot-stamping needle, and a heating device. The driving device is disposed on the frame and has a driving end. One of the hot-stamping needle and the heating device is disposed on the driving end, and the other of the hot-stamping needle and the heating device is disposed on the frame. A heat insulation body is disposed on the outside of the heating device.
[0005] In some embodiments, the heating device is provided with a heating channel for the insertion of the heating needle.
[0006] In some embodiments, the heating device includes an inductor having an inductance channel, and the heating needle extends at least partially into the inductance channel.
[0007] In some embodiments, the heat insulation body is provided on the side of the inductor device near the inductor channel.
[0008] In some embodiments, the inductor is provided with a thermocouple.
[0009] In some embodiments, the inductor includes a plurality of inductor coils arranged along the insertion direction of the hot iron needle.
[0010] In some embodiments, at least two of the inductor coil bodies are provided with thermocouples.
[0011] In some embodiments, the drive end is provided with a rotary motor, and the hot iron is disposed at the output end of the rotary motor.
[0012] In some embodiments, the inductor is provided with an adjustment device, and the inductor is connected to the frame through the adjustment device;
[0013] The inductor is positioned by the adjustment device.
[0014] This application provides a battery cell hot-drilling device, which includes the above-mentioned hot-drilling needle heating mechanism and a clamping device. The clamping device is provided with a clamping part, which is used to clamp the battery cell.
[0015] Compared with the prior art, the heating mechanism for the hot-pressing needle and the device for piercing the battery cell provided by this utility model have the following advantages: When it is necessary to pierce the battery cell, the driving mechanism first drives the hot-pressing needle to the heating device, the heating device heats the hot-pressing needle and the reverse direction, and then the driving device drives the heated hot-pressing needle to the battery cell to pierce the battery cell; Since a heat insulation body is provided on the outside of the heating device, when the heating device heats the hot-pressing needle, the heat insulation body can block the heat emitted by the heating device, thereby reducing the heat radiation of the heating device to other surrounding components and structures, and playing a protective role for the surrounding components and structures. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of one embodiment of this application;
[0017] Figure 2 This is a structural schematic diagram from another perspective of one embodiment of this application;
[0018] Figure 3 This is a disassembled structural diagram of one embodiment of this application.
[0019] 1000, Heating mechanism for hot ironing needles; 100, Hot ironing needle; 200, Heating device; 21, Inductor device; 211, Inductor coil body; 22, Insulation body; 23, Thermocouple; 24, Adjustment device; 300, Drive device; 31, Drive end; 400, Rotary motor; 500, Frame; 01, Inductor channel; 2000, Clamping mechanism; 02, Clamping part; S, Battery cell. Detailed Implementation
[0020] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.
[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0022] It should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0023] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
[0025] The present invention will now be described in further detail with reference to the accompanying drawings.
[0026] This application provides a heating mechanism 1000 for hot ironing needles, including a frame 500, a drive device 300, a hot ironing needle 100, and a heating device 200. The drive device 300 is disposed on the frame 500 and has a drive end 31. One of the hot ironing needle 100 and the heating device 200 is disposed on the drive end 31, and the other of the hot ironing needle 100 and the heating device 200 is disposed on the frame 500. A heat insulation body 22 is disposed on the outside of the heating device 200.
[0027] like Figure 1As shown, the heating needle 100 is located at the drive end 31, and the heating device 200 is connected to the frame 500. The drive end 31 can be used to drive the heating needle 100 to move during the heating and puncture process. In actual use, the drive mechanism can use a lead screw mechanism to drive the heating needle 100 to move. The heating device 200 is used to heat the heating needle 100. When it is necessary to puncture the battery cell S, the drive mechanism first drives the heating needle 100 to the heating device 200, the heating device 200 heats the heating needle 100, and then the drive device 300 drives the heated heating needle 100 to the battery cell S to puncture the battery cell S. Since the heating device 200 is provided with a heat insulation body 22 on its outside, when the heating device 200 heats the heating needle 100, the heat insulation body 22 can block the heat emitted by the heating device 200, thereby reducing the heat radiation of the heating device 200 to other surrounding components and structures, and playing a protective role for the surrounding components and structures.
[0028] It is understandable that the heating device 200 can also be set at the driving end 31, in which case the heating needle 100 is set on the frame 500, and the driving end 31 drives the heating device 200 to approach the heating needle 100 to heat the heating needle 100.
[0029] The technical details of each component will be introduced below.
[0030] In some implementations, such as Figure 2 , Figure 3 As shown, the heating device 200 is provided with a heating channel for the heating needle 100 to extend into. In practical applications, since the heating needle 100 has a slender structure, by inserting the heating needle 100 into a channel to heat the heating needle 100, the heating needle 100 can be heated more evenly. Concentrating the heat inside a channel can both increase the heating rate of the heating needle 100 and reduce the impact of the heat from the heating device 200 on surrounding components.
[0031] In some implementations, such as Figure 2 , Figure 3As shown, the heating device 200 includes an inductor 21, which forms an inductance channel 01. The heating needle 100 extends at least partially into the inductance channel 01. It should be noted that, compared to traditional transfer heating (where the heat of the heating needle 100 is transferred from other high-temperature objects, such as heating wires or flames), the inductor 21 heats the heating needle 100 by generating eddy currents inside the heating needle 100, thereby causing the heating needle 100 to heat up itself. Inductive heating is very fast and does not require the heating device 200 to be kept at a high temperature (transfer heating requires the heating device 200 to be kept at a high temperature to facilitate the heating needle 100 absorbing sufficient heat). Therefore, the impact on the components surrounding the heating device 200 is very small. When the heating needle 100 is heated by the inductor 21, the heating needle 100 extends into the inductor channel 01 under the action of the drive mechanism. Since the heating needle 100 is usually made of metal, the inductor 21 will generate a high-frequency changing electric field inside the inductor channel 01. When the metal heating needle 100 extends into the inductor channel 01, eddy currents will be generated inside the heating needle 100, thereby increasing the temperature of the heating needle 100. As can be seen from the above process, the inductor 21 only needs to work when the heating needle 100 extends into the inductor channel 01, and does not need to maintain a high temperature state all the time like the transfer heating device 200, thus achieving the effect of saving energy.
[0032] In some implementations, such as Figure 2 , Figure 3 As shown, a heat insulation body 22 is provided on the side of the inductor 21 near the inductor channel 01. In actual use, although the inductor 21 heats the heating needle 100 through the principle of electromagnetic induction, the heating needle 100 will still generate heat radiation to the surrounding components after its temperature rises. The heat insulation body 22 is arranged around the inside of the inductor channel 01 to block the heat lost by the heating needle 100, further reducing the impact on the surrounding components.
[0033] It is understandable that the heat insulation body 22 can be made of high-temperature resistant heat insulation materials, such as mica, ceramics, asbestos, etc. Since the inductor 21 will generate eddy currents inside the metal, the heat insulation body 22 must also be made of non-metallic materials.
[0034] In some implementations, such as Figure 2 , Figure 3 As shown, the aforementioned inductor 21 is equipped with a thermocouple 23. The thermocouple 23 serves to control the temperature, thereby facilitating the control of the heating temperature of the heating pin 100. If the heating temperature is too high, firstly, energy is wasted; secondly, due to the slender shape of the heating pin 100, it is easily damaged; and thirdly, it can easily affect surrounding components. Therefore, the thermocouple 23 helps the inductor 21 heat the heating pin 100 to a suitable temperature.
[0035] In some implementations, such as Figure 2 , Figure 3 As shown, the aforementioned inductor device 21 includes multiple inductor coil bodies 211, which are arranged along the insertion direction of the heating pin 100. Since the heating pin 100 has a slender structure, the arrangement of the multiple inductor coil bodies 211 along the insertion direction allows for more uniform heating of the heating pin 100. Furthermore, the multiple inductor coil bodies 211 can increase the heating speed of the heating pin 100, which is beneficial for improving the processing efficiency of the battery cell S.
[0036] In some implementations, such as Figure 2 , Figure 3 As shown, at least two inductor coil bodies 211 are equipped with thermocouples 23. Since the heating pin 100 has a slender structure, multiple thermocouples 23 can more accurately detect the temperature of various parts of the heating pin 100, thereby helping the inductor device 21 to accurately and evenly heat the slender heating pin 100 to a suitable temperature.
[0037] In some implementations, such as Figure 1 , Figure 2 As shown, a rotary motor 400 is provided at the drive end 31, and the heating needle 100 is located at the output end of the rotary motor 400. When the heating needle 100 punctures the battery cell S, the drive motor drives the heating needle 100 to rotate, so as to facilitate puncturing the battery cell S.
[0038] In some implementations, such as Figure 1 , Figure 2 , Figure 3As shown, the aforementioned inductor 21 is equipped with an adjustment device 24, and the inductor 21 is connected to the frame 500 through the adjustment device 24; the position of the inductor 21 is adjusted through the adjustment device 24. In actual use, the heating needle 100 needs to be aligned with the heating channel. In order to further prevent heat from being lost from the inductor channel 01 of the heating device 200, the inductor channel 01 needs to be relatively narrow, only slightly larger than the diameter of the heating needle 100. Therefore, during the assembly process of the device, the heating needle 100 needs to be aligned with the inductor channel 01. The adjustment device 24 can conveniently adjust the position of the inductor 21 after it is fixed relative to the frame 500, so as to ensure that the heating needle 100 can accurately pass through the inductor channel 01 of the inductor 21. It is understandable that if the heating needle 100 comes into contact with the inner wall of the inductor channel 01 during the process of passing through the inductor channel 01, the heating needle 100 will be in a high temperature state, which will easily cause the heating needle 100 to bend, thus seriously affecting the subsequent piercing process of the battery cell S. Furthermore, according to the description in the above embodiment, the inductor channel 01 is surrounded by a heat insulation body 22. If the heating needle 100 scrapes against the heat insulation body 22, it will directly damage the heat insulation body 22, thereby affecting the heat insulation effect of the heat insulation body 22.
[0039] This application provides a device for piercing a battery cell S, including the aforementioned heating mechanism 1000 and a clamping device. The clamping device is provided with a clamping part 02 for clamping the battery cell S. When piercing the battery cell S, the clamping mechanism 2000 clamps and fixes the battery cell S, and the driving mechanism drives the heating needle 100 to the heating device 200 to heat the heating needle 100 to a suitable temperature. Then, the driving device 300 continues to drive the heating needle 100 to pierce the battery cell S fixed in the clamping part 02.
[0040] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A heating mechanism for hot iron needles, characterized in that, include: Frame (500); A drive device (300) is disposed on the frame (500), and the drive device (300) is provided with a drive end (31); A heating needle (100) and a heating device (200) are provided, one of which is located at the drive end (31), and the other of which is located at the frame (500). A heat insulation body (22) is provided on the outside of the heating device (200).
2. The heating mechanism for the hot iron according to claim 1, characterized in that, The heating device (200) is provided with a heating channel for the hot iron (100) to extend into.
3. The heating mechanism for the hot iron according to claim 1, characterized in that, The heating device (200) includes an inductor (21) having an inductance channel (01) and the heating needle (100) extending at least partially into the inductance channel (01).
4. The heating mechanism for the hot iron according to claim 3, characterized in that, The heat insulation body (22) is provided on the side of the inductor (21) near the inductor channel (01).
5. The heating mechanism for the hot iron according to claim 3, characterized in that, The inductor (21) is equipped with a thermocouple (23).
6. The heating mechanism for the hot iron according to claim 3, characterized in that, The inductor device (21) includes a plurality of inductor coil bodies (211), which are arranged along the insertion direction of the hot iron (100).
7. The heating mechanism for the hot iron according to claim 6, characterized in that, At least two of the said inductor coil bodies (211) are provided with thermocouples (23).
8. The heating mechanism for the hot iron according to claim 1, characterized in that, The drive end (31) is provided with a rotary motor (400), and the hot iron (100) is provided at the output end of the rotary motor (400).
9. The heating mechanism for the hot iron according to claim 3, characterized in that, The inductor (21) is provided with an adjustment device (24), and the inductor (21) is connected to the frame (500) through the adjustment device (24); The inductor (21) is position-adjusted by the adjustment device (24).
10. A device for hot-drilling holes in battery cells, characterized in that, include: The heating mechanism (1000) for hot ironing as described in any one of claims 1 to 9; A clamping device is provided with a clamping part (02) for clamping a battery cell (S).